Waysun Johnny Tsai is the founder of C.U.M.A. (Combined Universal Martial Applications), Practical Tactical Training, and "THE A.R.C." (All Range Combat). Tsai was born and raised in Chicago, Illinois. He began his official martial arts training when he was just 8 years old. Today, Tsai is considered one of the world's foremost and progressive experts in practical street defense. He has written a practical street defense book, created 9 DVDs and has designed over a half dozen knife and impacts weapons. Check out our great prices on knives designed by Waysun Johnny Tsai below.
